Pulverizer.



No. 744,382. PATBNTED NOV. 17, 1903.

H. MOOR. I

PULVERIZER.

APPLICATION FILED N0V.31 1902.

N0 MODEL.

UNITED STATES Patented November 17, 1903.

HARRY MOOR, OF ROXBORO, PENNSYLVANIA.

PU LVERIZER.

SPECIFICATION forming part of Letters Patent No. 744,382, dated November17, 1903. Application led November 3, 1902. Serial No. 129 ,861. (Nomodel.)

T0 all whom, t may concern.:

Be it known that I, HARRY MOOR, residing at Roxboro, in the county ofPhiladelphiaJ andl State of Pennsylvania, have invented certainImprovements in Pulverizers, of which the following is a specification.

This invention relates to mechanism for disintegrating and pulverizingsolid materials, referring in part to the subject-matter of mycontemporaneously-pending application Serial No. 129,860. It isespecially designed to provide improved means for reducing coal to thefinely and uniformly pulverized condition in which it attains itshighest efficiency as a fuel.

A leading object of the-improvements is to provide crushing orpulverizing mechanism adapted for moving the material in process ofreduction through the pulverizer and ejecting it therefrom.

A further object is to provide a machine of simple parts readilyconstructed or replaced and easily assembled or separated.

The nature and characteristic features of the improvements will morefully appear by reference to the following description and theaccompanying drawings in illustration thereof, of which Figure 1represents a sectional elevation of a pulverizer embodying theinvention. Fig.

2 is a View illustrating the construction of the combined crusher and blower. Fig. 3 represents a View of the division plates or disks. Fig. 4is a view representing the en d plate of the pulverizer, and Fig. 5represents a form of end plate that may be employed for the dischargeend of the pulverizer. y

Referring to the drawings, the bearings 1 and 2 have journaled thereonthe shaft 3,

which may be driven in any suitable manner. The combined crushers andblowers 4 are screw-propellers having the angular or helical blades5preferably provided with serrated edges. These propellers and thespacingsleeves 6 are slipped in alternation on the shaft 5 and rigidlyclamped together by means of the nuts 7 and 8. Division-plates orpartitions 9 separate the combined pulverizing and propelling blades 5,these plates being provided with the perforations 10, the openings 11aordin g free space around the sleeves lying within the same, and theholes 12, through which and the corresponding holes 13 in the end plates14 the bolts 15 are passed to hold togther these parts and thecylindrical casing-sections 16, located between the plates.

The term helical as used in the claims is to be taken as the equivalentof the term angular and to include any blade arranged at an angle to itsshaft and adapted for both crushing and blowing.

The end plates have the shaft-openings 17, connected with slots 18,extending` to the periphery and provided with slides 19, these slots'permitting the regulation of air-admis- Asion and the ready removal ofthe shaft, with the parts thereon.

The material admitted by the inlet 20 may be ejected through theperipheral opening 2l or through end openings, as 22 or 23.

The coal introduced by the inlet 20 into the first compartment of thepulverizer is subjected to the influence of the revolvingpropeller-blades, which subject it to crushing impact and to centrifugaland longitudinal movement. Each blade exerts a crushing or grindinginiuence upon the coal as it revolves thesame in its compartments, but,further, by direct impact and by its blowing action forces the coallongitudinally through apertures in the division-plates and through thepulverizer to the outlet, by which it is discharged directly into thefurnace or into a collector, as may be desired. The results obtained aregreatly superior to those of pulverizers heretofore employed, theefficiency being higher and the pulverization Iiner and more uniform.

The casing and transverse .plates where large machines are employed maybe divided upon a plane passing through or parallel withl the axis, andother structural modifications may be made wit-hin the scope of myinvention.

Having described my invention, I claiml. A pulverizer comprising acylinder having projections extending inwardly therefrom, in combinationwith a revoluble shaft having helical devices thereon for disintegratingand blowing,said devices alternating with said projections,substantially as specied.

2. A pulverizer comprising a casing having ICO a series ofinwardly-projecting perforated members, in combination with a revolubleshaft having a series of blades angularly disposed thereto and adaptedfor disintegrating and blowing, said blades alternating with saidperforated members, substantially as spcilied.

3. A pulverizer comprising a cylinder having a series ofinwardly-projecting perforated members, in combination with a revolubleshaft havinga series of helical blades thereon, said blades alternatingwith said perforated members and carrying material in process ofpulverization therethrough, substantially as specified.

4. A pulverizer comprising a cylinder having a series of perforateddivision-plates therein, said plates dividing said cylinder into aseries of compartments, in combination with a revoluble shaft havingthereon a series of helical propeller-blades, adapted to revolve in saidcompartments, substantially as specified.

5. A pulverizer comprising a journaled shaft having crushers thereon,said crushers propelling the material in process of pulverizationtransversely thereto, in combination with a cylindrical casing Withinwhich said shaft is located, said casing having its ends provided withopenings or Ways for the purpose specified.

6. A pulverizer comprising a sectional cylind rical casing, a series ofperforated divisionplates respectively separating sections of saidcasing, end plates for said casing, a series of bolts passing throughsaid plates externally to said casing, a revoluble shaft having crushersthereon in said casing, said shaft passing through openings in saiddivision-plates providing free space around said shaft, and sleeves onsaid shaft for holding said crushers, substantially as specified.

'7. A pulverizer comprising a journaled shaft having helical propellersthereon provided Wth serrated blades in combination with fixed membersalternating therewith for the purpose set forth, substantially asspecifled.

In testimony whereof I have hereunto set my hand, in the presence of thesubscribing Witnesses, this lst day of November, A. D. 1902.

HARRY MOOR.

Witnesses:

WILLIAM E. CHAPMAN, UTLEY E. CRANE, Jr.

